Home / 1,858,439.38-2,561,931.69-1,313,613.94

Finding the Fourth Proportional to 1,858,439.38, 2,561,931.69 and 1,313,613.94

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Solution

The fourth proportional to 1,858,439.38, 2,561,931.69 and 1,313,613.94 is: 1,810,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,439.38 : 2,561,931.69 = 1,313,613.94 : x
  2. Step 2: Convert to fraction form
    1,858,439.38/2,561,931.69 = 1,313,613.94/x
  3. Step 3: Cross multiply
    1,858,439.38x = 2,561,931.69 × 1,313,613.94
  4. Step 4: Simplify right side
    1,858,439.38x = 3,365,389,181,311.76
  5. Step 5: Solve for x
    x = 3,365,389,181,311.76/1,858,439.38
  6. Step 6: Final answer
    x = 1,810,868.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.